Body roller



Nov. l1, 1952 E. C. KRADOSKA BODY ROLLER Filed April 13,-1949 lll INVENTOR. faward//radaj/f' BY www M /horwg/ Nov. 11, 1952 E, C, KRADQSKA 2,617,466

v BODY ROLLER Filed April 13, 1949 s sheets-sheet 2 /za INVENTOR.

Nov. 1l, 1952 E. c. KRADosKA 2,617,466

BODY ROLLER Filed April 15, 1949 3 Sheets-Sheet 3 v IOO Fl'ql.

IN V EN TOR.

Patented Nov. 11, *1952 'd 'j I 1 2,617,466

UNITED STATES PATENT OFFICE BODY ROLLER Edward Charles Kradoska., Melrose, Pa. Application April 13, 1949, serial No. 87,273

MyY invention relates to a lbody roller of the type used for removing dents and bumps from the chine, body bulges and bead of open head steel drums.

One object of the invention is to produce an improved machine of the type set forth.

A1 further object is to produce an improved machine whereby dents and bumps may be removed from the body of the drum as Well as from the chine, body bulges and bead thereof, and regardless of Whether the bung hole is in an end Wall or in the side of the drum.

A still further object is to produce an improved machine which will be eiiicient and easy tooperate.

`These and other objects are attained bymy invention as set forth in the following specication vand as illustrated in the accompanying drawings in which: y Y

Fig. 1 is a side elevational view of va machine embodying my invention.

Fig. 2 is a vertical sectional View of the same.

Fig. 3 is a rear, or left hand, end elevational View of the same.. i f

Fig. 4 is a view, partly .in Vertical section and partly in front, or right-hand, elevation of the same. f Y n Figs. 5, 6 and '7 are elevational views showing certain details of construction.

Fig. 8 is a diagrammatic and fragmentary elevational View showing one position of a. stop formingV part of themachine.

Fig. 9 is similar to Fig; 8 except that it shows another position of the stop.

"'Fig..10.is` an enlarged, fragmentary sectional view of the front, or right-hand, end of .the ma-V yThe machine illustrated includes a [suitable frameto Whichissuitably secured an elongated, horizontally disposed housing lilwhichY carries a roller l2 for supporting the drum to, be repaired. The roller I2 is rotated about its 1ongitudinal axis by means of a geary i4 which meshes'withapinion I6 driven by a motor M.

s claims. (C1. 153-54) "The roller l2' is'provided with a relatively wide K cylindricalrsurface I8` and on its outer, or 'right hand, vertical face it is provided withprojecting lugsiwh'ichh'ave tapped openings 22'for receive' .2tY and. the: diameter of thev plaiesisd" 2 ing bolts 24 which are carriedy by,l andwhich pass through an outer roller 26,whereby the roller 26- is supported by the roller l2" as best shownV in Figs. 2 and 10. The end roller 26, Which is shown in Fig. '7, is of the same diameter, as, and its surface forms an extension of vthe surface ofithe roller Yl2' and hence; the `suifatce; of thevroler 26 has-also-been designatedbyiref-f erencegnumeral` i8. `In other Awords,thejlieadA |2and the end roller 26 co-acty to Aprovide-"acyff' lindrical-support for thefdrum 28,- portionsjof which arev shown in section in Figs. 9,- 1"1,` 12'and 13 and in broken 'lines in Fig. 10. l Mounted between the roller I2 `and the end roller 26, is a forming plate 3U which is best shownin Fig. 6. The plate Sis provided 'vvithY` openings 32 through whichthe lugs20 pass, 'and the periphery 34 of this plate isi'shapedjac-j cording to the 'effect to be produc'edgfin Fig. 10 it is Vshown as itv would be shaped Whenfitfjs to be used in-removing -dents 'fromithe'body bulgesl ofV a steel drumand', therefore, the con: a tour-of the periphery- 34` of lthe plate3 0,fas seen' from/its cross sestion-in Figs. 2 and 10,*is-s11chY as to conform to the shape of the cross'sectiri of the bulge. Itljis `to beunderstoody-ihow'ev rf that the contour of therim of thevplate frnay be changed as may-be*d'esired .`v 4The vopenings 2f inthe plate 30 are much bigger, in'all directions',` thany Vthe lugs 20'whichfpass therethrough so as to permit thea-plate y30' to move, radallyjrelaftive'to the rollers I 2- and 2li'such-fforeXajrnpleV asfrmthe position ofFig. 2 to Vthe position Theplate A3!) is-also provided with a central openingj36 through-'Whichjextends a r'shaft-33?? v position of Figi?. in: which its upper"pperiploerft# 1s flushV with, `or below,- the"adjacent surfaces ofr V the roller vI2 andthe Zroller 26l *When rthc'sl'iaft 3a is moved 'to the left untilthe` outer 'ommen-, calportion 44 seats in the opening 36, theplate,

30 becomes concentric with thel rollers greater thanthat-of'tiioro11ers-l'ziondizift 3 periphery 34 0f the plate 30 will project, uniformly, beyond the cylindrical surfaces I8 of the rollers I2 and 26. The intermediate conical portion 42 guides or facilitates the entry of the outer cylindrical portion 44 into the opening 36.

The shaft 33 may be moved by any suitable means, but, according to my invention, I provide a double-acting air cylinder 46 adapted to move a plunger I8 to the right or to the left, as viewed in Fig. 2, and I .connect the plunger 13S to the shaft 38 by means of a universal joint 60. The air cylinder t6 is connected to a double acting valve 52 by means of pipes 5d and the valve is supplied with air through a pipe 56 leading from a suitable source not shown. The pressure of the air is indicated by a guage S cut into the supply line in the usual manner. lIhe air valve is operated by means of a lever 60 so as to supply air to one side or the other of the air cylinder to move the plate 30, through the instrumentality of the shaft 38 to the position of Fig. 2 or, to the position of Fig. 10.

Co-acting with the lower rollers I2 and 26 are two rollers 62 and 64 each of which is provided with an inner end groove 66 for operating on the bead at the open end of a drum, and with an intermediate groove 68 for operating on the body bulges of the drum. The rollers 62 and 64 are mounted on stub shafts and 'I2 which are journalled in opposite walls of a yoke 14. Either or both of the rollers 62 and 64 may rrotate freely or may be positively driven but in my improved machine I provide means for driving only one of these rollers. As will be seen from Figs. 2 and l0. the roller 64 is keyed, at 80, to its stub shaft which is connected by means of a, universal joint I6 to a shaft 18, which is driven by means of pinion 82 meshing with the gear I4, which drives the lower rollers I2 and 26, all as shown in Fig. 2.

The rolls 62 and 64 are adapted to be moved, vertically, relative to the lower rollers I2 and 26, or from the position of Fig. 2 to that of Fig. 10, by means of a single acting air cylinder 90 which, when supplied with air under pressure, serves to depress the sleeve 92 which carries the yoke 'I4 which carries the rollers 62 and 64. The air cylinder 90which is available on the market and is therefore not described in detail, is controlled by a foot operated valve 96 to whichit is connected by pipes 98 which are supplied by air from supply pipe 56. The valve 96 is such that, in one `position thereof, it admits air into the air cylinder 90 and in another position thereof it exhausts air from this air cylinder. The air cylinder 90 and the sleeve 92, and, hence, the rollers 62 and 64 are normally maintained in the upper position of Figs. 1 and 2, by a. spring |00 which is confined between a xed block |02 and the top wall of the sleeve 02. The fixed block |02 is carried by a cross bar |03 which is mounted on the frame of the machine and which projects into the sleeve 92 through opposite vertical slots |04 formed in the wall of the sleeve, to permit vertical movement of the sleeve relative to the xed block.

In order to support the drum while it is being operated on, I provide a vcradle which is best shown in Figs. 2 and 11. This cradle includes a pair of arms I06, which carry rolls I08 and is pivoted at IIO to a support |I2, which is secured to the bottom frame of the machine as at |I4. The pivot of the cradle is such that it can tilt or rock, in a longitudinal direction, between the positions of Figs. l and 2, and so that it also has a limited play in a transverse direction, or in a .4 direction at a right angle to the direction of tilting shown in Figs. l and 2. By this means the cradle provides a flexible or self-adjusting support for the drum.

The machine illustrated also includes a stop for positioning the bead of an open end drum. This stop is best shown in Figs. 8, 9 and 10 and includes a shoe IIS carried by an arm |20 which is pivoted at |22 to the frame of the machine so that the shoe may be raised from, or lowered into contact with the surface Iii ci the rollers I2 and 26. The arrn i236, and, hence, the shoe IIS, are biased upwardly, or to the position of Fig. 9, by a spring Id and are adapted to be moved to the lower position of Fig. 8, in which the shoe rests on the roller I2, by means of a conventional over-center toggle such as that shown in Figs. 8, 9 and l0.

The toggle mechanism, which need not be described in detail, is actuated by means of a lever I26 having a handle bar IM and the arrangement is such that, when the lever I2@ is moved downwardly or to the position of Figs. 8 and l0,

the shoe IIIB will move to its lower position in which it rests on the roller I2 and in which its outer end underlies the inner ends of the upper rolls 62 or 6. In this position, the shoe IIS forms a stop so that when the end of the drum abuts it, the bead 936 of the drum will register with the inner grooves 66 on the upper rolls 62 and E41. When the lever I26 is moved to the upper position of Fig. 9, the toggle is collapsed and the spring I21i raises the arm I2@ and the shoe IIS so as to permit the drum to be moved inwardly between the lower and upper rollers until the bulge or bulges 32 of the drum .come into registration with the periphery 3d of the plate 30 and the grooves 66 of the roller 62 and Gil.

The outermost roller 26 is provided with a central recessI I3@ for accommodating the end of the shaft Pi-i3, when the latter` is in the position of is also provided with counter-bore or recess |36 in the outer face thereof. A cover plate |38 seats in the recess |36 and is secured in position by a. bolt or the like M0.

The operation is as follows: When the bead |36 at the open end of the drum is to be rolled, to eliminate dents and bumps, the lever |26 is moved to its lower position so as to bring the shoe IIS to its lower effective position as shown in Figs. 8 and 1G. The drum is now placed on the rolls |28 of the supporting cradle and it is moved inwardly between the upper and lower rollers until its bead abuts the end` of the shoe of IIB. The foot valve 66 is then operated-to lower the yoke I4 and the rollers 62 and 'into the eiective position of Fig. l0 in which the inner grooves 66 of the rollers 62 and 64 vwill be in registration with the bead of the drum. The switch |42 is now 'closed to energize the motor M and rotate the lower rollers |2 and 26 and the upper roll 64. The switch |42 is double acting and the motor M is o f the reversing type so that, when the switch |42 is moved to one position, the motor shaft will turn in one direction and, when the switch is moved to another position, the motor shaft will turn in the opposite direction.

When it is desired to smooth out a bulge formed in the body of the drum, the lever |26 is moved to the upper position of Fig. 9 so as to allow the spring |24 to raise the shoe H8, and p-ermit insertion of the open end of the drum inwardly past the inner ends of the rollers 62 and 64. Ther valve 52 is then operated so as to move the shaft 3'8 to the left and bring theplate 30 toitseective position, which is shown in Fig. 10. Now,.

upper positions, thedrum-is moved inwardly over" the lower rollers until the bulge to be smoothed out registers with `theperiphery 34 of the plate 30 and the grooves 68 of the rollers 62 and 64. The upper rollers are now lowered by` manipulation of the foot valve 96 and the switch |42 is closed to energizerthe motor M. --In some instances,- the bead of the drum and the adjacent body bulge are so spaced that they can be smoothed out in one operationas shown in Fig. 10.

Whenthe chine |44 of theside wall of the drum adjacent its bottom 46'is to be smoothed out, itis 'only necessary to energize the motor to place the' chine |44 over the outer end of the roller 26 and to lower the rollers 62 and 64 as diagrammatically shown in Fig. 13.

As will be seen from Fig. 10, when a body bulge is being rolled, the adjacent portions of the drum body will also be rolled. In many, if not most, cases, the width of the rollers 62 and 64 is such that one-half of the area between two body bulges is rolled with the rolling of one bulge and the rest of the area is rolled when the second bulge is rolled. When a side-filled drum is to be rolled, the bung hole and the fitting |48 thereon will be in the way and a band of a width equal to, or slightly greater than, the diameter of the fitting |48 would ordinarily remain unsmoothed. But, according to my invention, this band or area can be smoothed in the manner shown in Figs. 11 and 12. As shown in these figures the drum is adjusted until the bung hole fitting |48 registers with the rollers 62 and 64. The upper and lower rollers are rotated in one direction until they are about to abut one side of the fitting |48 and are then rotated in the reverse direction until they are about to abut the opposite side of the iitting, as shown in Figs. 11 and 12. It will be understood that, except when rolling one of the body bulges the plate 3|) is always in the lower, inelective position of Fig. 2.

What I claim is:

1. A machine for removing dents and bumps from a metallic drum, or from a bead, or a bulge on such drum, said machine including a first cylindrical roller, a second cylindrical roller, a reversible motor for rotating said rollers about parallel axes, one of said rollers being movable towards, or away from the other of said rollers, there being a bead-engaging groove near one end of said second roller, and a bulge-engaging groove in said second roller intermediate the ends thereof, said grooves and the cylindrical body of said second roller being arranged to engage said bead, said bulge and the body of said metallic drum, re-

spectively, means for moving said movable roll roller into operative position relative to the other f said rollers, and a switch for controlling the direction of rotation of the motor.

2. The structure recited in claim 1 in which said first roller is disposed below said second roller and in which said second roller is movable towards, and away from, said rst roller.

3. The structure recited in claim 1 together with a movable stop, means for moving said stop to a first position in which it obstructs the space between said rollers and limits the extent to which the body wall may be inserted between said rollers to align the bead at the end of said body with said bead engaging groove, and to a second position in which said stop does not obstruct said space.

4. A Y machine for removing dents and bumps upper, rotatableI and vertically movable roller, a motor for rotating said rollers about parallel axes, means for raising said upper roller for insertion of a wall of the drum between said rollers, means for lowering said upper roller ,whereby said upper and lower rollers engage the outer and inner surfaces, respectively, of a drum inserted therebetween, and a pivotally mounted cradle .disposed near said rollers for movably supporting the drum while the latter is in engagement with said rollers.

5. A machine for removing dents and-bumps.

from the'bead, the chine and the body of a metallic drum, said machine including a lower, rotatable, but otherwise immovable roller, an upper, rotatable, but vertically movable roller, means for rotating said rollers, means for moving said upper roller to a lower position in which said rollers engage the inner and outer surfaces, respectively,

of the wall of a drum inserted therebetween, there being a bulge engaging groove in said upper roller, lugs carried by said lower roller, a forming plate of a diameter larger than that of the lower roller and having apertures therein through which said lugs pass, said apertures being much larger than said lugs and the contour of the periphery of said plate being complementary to the contour of said bulge-engaging groove, said plate also having a :central opening therein, a shaft extending through said central opening and having a reduced portion which fits loosely in said central opening and an enlarged portion which fits snugly in said central opening, and means for moving said shaft to a rst position in which the reduced portion of the shaft engages said central opening and said plate is eccentric to said lower roller and its upper periphery is disposed below the adjacent periphery of the lower roller, and to a second position in which the enlarged portion of the shaft engages said central opening and said plate is concentric with the lower roller and its periphery projects beyond the periphery of the lower roller.

6. A machine of the .type disclosed including a first roller and a second roller, means for driving at least one of said rollers, means for moving one of said rollers towards, and away from, the other of said rollers, there being a slot formed in said first roller, a forming disc having a diameter larger than the diameter of said first roller, means loosely mounting said disc in said slot whereby said disc is movable to a first position in which it is eccentric to said first roller and a portion of the disc is disposed inwardly of the periphery of the first roller and the opposite portion of the disc projects beyond the periphery of said first roller, and `to a second position in which the disc is concentric with said rst roller and the entire periphery of the disc projects beyond the entire periphery of said first roller, and means for moving said disc to said second position and for retaining it in said second position.

7. The structure recited in claim 6 in which said iirst roller is below said second roller and said disc is movable to its first position by gravity.

8. A machine for removing dents and bumps from a metallic drum, or from a bead, or a bulge on such drum, said machine including a first cylindrical roller, a second cylindrical roller, a reversible motor for rotating said rollers about parallel axes, one of said rollers being movable towards, or away from, the other of said rollers, there being a bead-engaging groove near one end of said second roller and a bulge-engaging groove in said second roller intermediate the ends thereof, said grooves and the cylindrical body of said second roller being arranged to engage said bead, said bulge and the body of said drum, respectively, means for moving said movable roller into operative position relative to the other of said rollers, there being a recess formed in the periphery of said rst roller, a forming member movabl'y mounted in said recess, said forming member normally occupying a rs-t position in which its periphery does not project beyond ithe surface portion of said first roller which is adjacent said second roller, and means operable at 8 will for moving said forming mem-ber to, and retaining it in, a second position in which its periphery projects beyond said surface portion.

EDWARD CHARLES KRADOSKA.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

